Mind & Matter


Light Field Camera Allows Focus Shift, Post-Shot

Submit A Comment | View Comments

Lytro light field camera allows photographers to manipulate focus after the picture is taken. Photo courtesy of Lytro.


In the field of photography, post-processing can yield significant benefits, such as the ability to correct for color, exposure, and geometry. However, some image properties—such as focus—may not be significantly modified post-capture.

A new camera technology will bring unprecedented flexibility to the post-processing stage. When it is made commercially available later this year, the Lytro light field camera will allow photographers to do the unthinkable—adjust image focus after a shot has been taken.

Based on a Stanford dissertation by Dr. Ren Ng, the new photographic technology records separate light rays and their individual characteristics, rather than combining them as typical digital cameras do. In-camera software integrates the various colors and intensities of these rays to create what we perceive as a single image, and the recorded light field data may be manipulated later to obtain the optimal focus point.

Demonstrations of the technology may be found on the Lytro blog page.




Be the first to add a comment to this post.

Comment on this Post

Post your comment below. If you wish, enter a username and password though they are not required. Please read our Content Guidelines before posting.


Enter the code shown in the image

Username is optional


Enter a password if you want a username


About the Blogger

Blaine Brownell

thumbnail image Minnesota-based architect and author Blaine Brownell, AIA, is a self-defined materials researcher and sustainable building adviser. His "Product of the Week" emails and three volumes of Transmaterial (2006, 2008, 2010) provide designers with a steady flow of inspiration—a 21st-century Grammar of Ornament. Blaine has practiced architecture in Japan and the U.S. and has been published in more than 40 design, business, and science publications. The recipient of a Fulbright fellowship for 2006–07, he researched contemporary Japanese material innovations at the Tokyo University of Science. He currently teaches architecture and co-directs the M.S. in Sustainable Design program at the University of Minnesota. His book Matter in the Floating World was published by Princeton Architectural Press in 2011.